How Crowded Is Death Valley in September?
September is an average month at Death Valley National Park, running about 0.9× the park's average month — roughly 8% of the year's visitors come in September. That puts it between the March peak and the June low. Overall our best-time score rates September as "Fair" for a visit. Typical September weather averages a high near 105°F and a low around 79°F, with about 0" of precipitation. You'll get about 12.2 hours of daylight to explore.
Frequently Asked Questions
September is average at Death Valley National Park (about 0.9× the average month). Our best-time score rates it "Fair". The single best month overall is January.
The busiest month is March and the quietest is June. September sits at about 0.9× the park's average, or 8% of annual visitation.
Source: National Park Service Visitor Use Statistics (1979–2025), NOAA NCEI Climate Normals 1991–2020. Updated 2026-06-20.